Power Redundancy Combined Max Inputs - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

power redundancy combined max inputs

To configure the power settings for the chassis specifically for 'Combined Mode Resiliency', use the
power redundancy combined max inputs command. To return to the default setting, use the default
form of this command.
This feature only applies in combined mode when both power supply bays contain the 4200 W AC, 6000
Note
W AC, or 9000W power supply.
Syntax Description x | y
Defaults
Redundant power management mode
Command Modes Global configuration mode
Command History Release
IOS XE 3.4.0SG
and 15.1(2)SG
Usage Guidelines
Using the combined mode power resiliency feature, you can limit the power usage to a maximum of two
or three (configurable) inputs for 4000W and 6000W power supplies. For 9000W power supplies, you
can limit the power usage to a maximum of 2 to 5 inputs, since the 9000W is a triple input power supply.
With two 4200 W AC or 6000 W AC power supplies, a maximum of four inputs are available. With two
9000W, a maximum of six inputs are available. This feature allows you to cap the power usage to that of
two/three inputs or four/five inputs. If one of the power supplies fails, no loss of power occurs because
you have capped its usage to a smaller number of inputs.
If you have max inputs 3 configured with four "good" (220 V) inputs and you limit the user to 5500 W
instead of 7600 W and one subunit fails or is powered off, you have three quality inputs providing 5500
W and the chassis is powered at the same rate as it was prior to the failure event:
Switch# configuration terminal
OL-27596 -01
power redundancy combined max inputs {x | y}
default power redundancy combined max inputs
Sets the max input limits.
If 9000W power supplies are installed, the valid input range is 2-5.
The maximum number of power-supply inputs with two 9000W power
Note
supplies is 6.
If 4200W or 6000W power supplies are installed, the valid input range is 2-3.
Note The maximum number of power-supply inputs with either two 4200W or
two 6000W power supplies is 4.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
power redundancy combined max inputs
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